Damage characteristics of fused silica under low-temporal coherence light

Chong Shan; Lingbao Kong; Fujian Li; Yong Cui; Lailin Ji; Quan Zheng; Daxing Rao; Ruijing He; Xiaohui Zhao; Yuanan Zhao; Zhan Sui

doi:10.1017/hpl.2024.10

High Power Laser Science and Engineering (Jan 2024)

Damage characteristics of fused silica under low-temporal coherence light

Chong Shan,
Lingbao Kong,
Fujian Li,
Yong Cui,
Lailin Ji,
Quan Zheng,
Daxing Rao,
Ruijing He,
Xiaohui Zhao,
Yuanan Zhao,
Zhan Sui

Affiliations

Chong Shan: Shanghai Engineering Research Center of Ultra-precision Optical Manufacturing, School of Information Science and Technology, Fudan University, Shanghai, China Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai, China Key Laboratory of High Power Laser Materials, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China
Lingbao Kong: ORCiD; Shanghai Engineering Research Center of Ultra-precision Optical Manufacturing, School of Information Science and Technology, Fudan University, Shanghai, China
Fujian Li: Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai, China
Yong Cui: ORCiD; Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai, China
Lailin Ji: Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai, China
Quan Zheng: Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai, China
Daxing Rao: Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai, China
Ruijing He: Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai, China
Xiaohui Zhao: Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai, China
Yuanan Zhao: ORCiD; Key Laboratory of High Power Laser Materials, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China
Zhan Sui: Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai, China

DOI: https://doi.org/10.1017/hpl.2024.10
Journal volume & issue: Vol. 12

Abstract

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The damage characteristics of fused silica were investigated under low-temporal coherence light (LTCL). It was found that the laser-induced damage threshold (LIDT) of fused silica for the LTCL was lower than that of the single longitudinal mode pulse laser, and for the LTCLs, the LIDTs decrease with the increasing of laser bandwidth, which is not consistent with the temporal spike intensity. This is due to the nonlinear self-focusing effect and multi-pulse accumulation effect. The specific reasons were analyzed based on theoretical simulation and experimental study. This research work is helpful and of great significance for the construction of high-power LTCL devices.

Published in High Power Laser Science and Engineering

ISSN: 2095-4719 (Print); 2052-3289 (Online)
Publisher: Cambridge University Press
Country of publisher: United Kingdom
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: https://www.cambridge.org/core/journals/high-power-laser-science-and-engineering

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